California becomes first US state to set efficiency rules for replacement tires

California's Energy Commission unanimously approved new tire efficiency standards that will block the sale of older, less efficient replacement tires beginning in 2029. The standards are projected to save drivers nearly $1 billion annually in fuel and electricity costs and reduce carbon emissions by 2 million metric tons per year, equivalent to removing roughly 400,000 gasoline cars from roads.

The regulations do not take effect until 2029, and industry groups have raised concerns about increased replacement tire costs.